Home / 15,242.31-21,033.72-8,867.97

Finding the Fourth Proportional to 15,242.31, 21,033.72 and 8,867.97

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Solution

The fourth proportional to 15,242.31, 21,033.72 and 8,867.97 is: 12,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.31 : 21,033.72 = 8,867.97 : x
  2. Step 2: Convert to fraction form
    15,242.31/21,033.72 = 8,867.97/x
  3. Step 3: Cross multiply
    15,242.31x = 21,033.72 × 8,867.97
  4. Step 4: Simplify right side
    15,242.31x = 186,526,397.95
  5. Step 5: Solve for x
    x = 186,526,397.95/15,242.31
  6. Step 6: Final answer
    x = 12,237.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.